<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<style>
    *{
        margin: 0;
        padding: 0;
    }
    .school{
        float: left;
    }
    .index{
        float: right;
    }
    .cloud{
        width: 200px;
        border: 1px solid  brown;
    }
    li{
        overflow: hidden;
    }
</style>
<body>
<div class="cloud">
    <ol>
        <li>
            <span class="school">北京大学</span>
            <span class="index">67564</span>
        </li>
        <li>
            <span class="school">清华大学</span>
            <span class="index">66666</span>
        </li>
    </ol>
</div>
</body>
</html>